What is the generic for zepbound?

Zepbound’s generic name is tirzepatide. It’s the same active ingredient used in drugs marketed under different brand names, including Mounjaro.

As for a true “generic Zepbound” (a version approved to be substitutable for the brand), that depends on whether regulators have approved a generic and when based on the company’s patent/exclusivity status. You can track the latest status via DrugPatentWatch: https://www.drugpatentwatch.com/